======================== unified (from filesystem) ========================
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                                        'duration'  '599'
                                          'artist'  ':zoviet*france:'
                                     'text_people'  ''
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                                           'title'  'Electron Gate'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', "
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                                      'lastfmtags'  "['dark ambient', 'industrial', 'ambient', 'drone', 'experimental']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
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                                      'tracktotal'  '9'
                                            'date'  '2000'
                                        'comments'  ''
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                                             'key'  '9B'
                                        'acoustid'  '5a901179-f197-4cd7-b2ec-ffecd07a0070'
rest: ''

======================== rawer (from filesystem) ========================

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
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'TBPM' (BPM (beats per minute))                     '141.2'
'TCON' (Content type, a.k.a. Genre)                 'electronic-ambient-dark'
'TDOR' (Original release time)                      '2000'
'TDRC' (Recording time)                             '2000'
'TIT2' (Title/songname/content description)         'Electron Gate'
'TKEY' (Initial key)                                '9B'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               ':zoviet*france:'
'TPE2' (Band/orchestra/accompaniment)               ':zoviet*france:'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  'Tramway'
'TRCK' (Track number/Position in set)               '2/9'
'TSO2'                                              'Zoviet France'
'TSOP' (Performer sort order)                       'Zoviet France'
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'TXXX:CATALOGNUMBER'                                'TRAM 1'
'TXXX:MusicBrainz Album Artist Id'                  '491244a7-ed6c-4fe5-a19a-0170a014f7ea'
'TXXX:MusicBrainz Album Id'                         '41b5bce5-5973-49de-8467-7363526da93f'
'TXXX:MusicBrainz Album Release Country'            'GB'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'album'
'TXXX:MusicBrainz Artist Id'                        '491244a7-ed6c-4fe5-a19a-0170a014f7ea'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:SCRIPT'                                       'Latn'
'TXXX:lastfmtags'                                   ['dark ambient', 'industrial', 'ambient', 'drone', 'experimental']
'TXXX:q-bass'                                       '2'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-0.33 dB'
'TXXX:replaygain_track_peak'                        '0.964799'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'98898623-b403-4d90-b5af-c888f904ba6c')

========================== row from database ==========================
                                              'id'  1456786
                                            'path'  /data/Music/Bulk/00poprockelectronic/00ambient/hdfhgf/02 Electron Gate.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  599
                                           'genre'  electronic-ambient-dark
                                        'filesize'  14428050
                                           'mtime'  1636910187
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic 00ambient hdfhgf 02 electronic ambient dark
                                      'tag_artist'  :zoviet*france:
                                     'tag_release'  The Decriminalisation of Country Music
                                       'tag_title'  Electron Gate
                                             'bpm'  141.2
                                    'search_title'  'electron':1 'gate':2
                                   'search_artist'  'france':2 'zoviet':1 'zovietfrance':3
                                  'search_release'  'country':4 'decriminalisation':2 'music':5 'of':3 'the':1
                                     'search_rest'  '00ambient':2 '00poprockelectronic':1 'ambient':5 'dark':6 'electronic':4 'hdfhgf':3
                                    'search_combo'  '00ambient':12 '00poprockelectronic':11 'ambient':15 'country':9C 'dark':16 'decriminalisation':7C 'electron':1A 'electronic':14 'france':4B 'gate':2A 'hdfhgf':13 'music':10C 'of':8C 'the':6C 'zoviet':3B 'zovietfrance':5B
                                    'tag_tracknum'  2
                                      'num_images'  1
                                             'key'  9B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-2', 'q-drums-3', 'q-syn-3', 'q-chart-2', 'q-other-4', 'Q-HAP-3', 'q-bass-2', 'q-grit-2']
                                      'lastfmtags'  ['dark ambient', 'industrial', 'ambient', 'drone', 'experimental']
                                        'tag_date'  2000
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1636910186.8156483  (2021-11-14 18:16:26)
                             'size'  14428050